Surface-Confined Light Harvesting, Energy Transfer, and Amplification of Fluorescence Emission in Chromophore-Labeled Self-Assembled Monolayers

Chrisstoffels, Lysander A. J.; Adronov, Alex; Fréchet, Jean M. J.

doi:10.1002/1521-3773(20000616)39:12<2163::aid-anie2163>3.0.co;2-x

Cited by 81 publications

(50 citation statements)

References 55 publications

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“……) 206,207 and to prove energy transfer by assembly of donor and acceptor chromophores as mixed monolayers. 208,209 The first effective sensing systems using covalently bonded dyes to glass were used for pH sensing. 210,211 Almost 20 years ago Wolfbeis and co-workers 212 reported the covalent immobilization of fluorescent acridinium and quinolinium indicators on a glass surface to create the first optical sensor for halides and pseudohalides.…”

Section: Glass and Gold Surfacesmentioning

confidence: 99%

Design of fluorescent materials for chemical sensing

2007

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There is an enormous demand for chemical sensors for many areas and disciplines. High sensitivity and ease of operation are two main issues for sensor development. Fluorescence techniques can easily fulfill these requirements and therefore fluorescent-based sensors appear as one of the most promising candidates for chemical sensing. However, the development of sensors is not trivial; material science, molecular recognition and device implementation are some of the aspects that play a role in the design of sensors. The development of fluorescent sensing materials is increasingly captivating the attention of the scientists because its implementation as a truly sensory system is straightforward. This critical review shows the use of polymers, sol-gels, mesoporous materials, surfactant aggregates, quantum dots, and glass or gold surfaces, combined with different chemical approaches for the development of fluorescent sensing materials. Representative examples have been selected and they are commented here.

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Section: Glass and Gold Surfacesmentioning

confidence: 99%

Design of fluorescent materials for chemical sensing

2007

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“…However, this spin-spin interaction exists in the polymers explained not by a through bond but by a through space [18,19]. The linear structure of PMeTPA enables close contact between the polymer chains.…”

Section: Magnetic Properties Of Polymersmentioning

confidence: 99%

Electrical and magnetic properties of electro-oxidative polymerized poly(tris(thienylphenyl)amine)s

Cho

Uchida

Yoshioka

et al. 2004

Science and Technology of Advanced Materials

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Electro-oxidative polymerized poly(tris(thienylphenyl)amine)s, which have the hyperbranched (dendritic) structure (PTPA) and linear type (PMeTPA), were investigated for their electrical and magnetic properties. The conductivity PTPA showed was almost one order higher than that of PMeTPA. From the solid state ESR measurements of the polymers, observation of ESR signal at gZ2.0027 and 2.0030 indicated the formation of a triphenylamine cation radical. The normalized magnetization plots (M/M S ) for PTPA and PMeTPA are close to the theoretical Brillouin curves for SZ1, indicating a magnetic interaction between the spin centers in PMeTPA. The spin concentrations determined by the M S values of PTPA and PMeTPA were 7.3-7.4 and 1.3-1.4%, respectively. This large difference in the spin concentration of the polymers according to the structure resulted from a different spin conformation by the radical structure. q

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“…Layer-by-layer self-assembly of hole-transporting polymers has been reported to increase the quantum efficiency of the device [20], and the use of a polyaniline modified ITO electrode for polymer light-emitting diodes (PLEDs) has also been reported [21]. In addition to their use in OLED devices, SAMs with various kinds of surface properties can be applied to molecular electronic devices such as chemical sensors and biosensors [22], field-effect transistors (FETs) [23], liquid crystal displays (LCDs) [24]. The formation of SAM on ITO substrates can be shown by the surface energy modification, since surface properties are a direct manifestation of intermolecular forces.…”

Section: Introductionmentioning

confidence: 99%